test(altair-app): add unit tests for environment config #2979
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Reviewer's guide (collapsed on small PRs)Reviewer's GuideAdds a new Jest unit test suite for the altair-app environment configuration to validate production flags, app version mapping, and server readiness behavior. File-Level Changes
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Summary of ChangesHello @AtharvaSagane, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request introduces a dedicated suite of unit tests to verify the integrity and correctness of the application's environment configuration. By validating key environment variables such as the production flag, application version, and server readiness, it ensures that the application operates with the expected settings, thereby improving reliability and maintainability. Highlights
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📝 WalkthroughWalkthroughAdds a new test suite that imports the environment module and package.json, asserting that Changes
Estimated code review effort🎯 1 (Trivial) | ⏱️ ~3 minutes Poem
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Code Review
This pull request introduces unit tests for the environment.ts configuration file in altair-app. The tests are well-written and validate key aspects like the production flag, app version, and server readiness. My feedback includes a minor suggestion to make one test assertion more specific, which will enhance the test suite's accuracy for the development environment.
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Actionable comments posted: 0
🧹 Nitpick comments (1)
packages/altair-app/src/environments/environment.spec.ts (1)
5-7: Consider asserting the expected value for the development environment.Testing only that
productionis a boolean is a weak assertion. For the development environment file, you should verify it's explicitlyfalseto catch accidental changes.♻️ Suggested improvement
it('should define production flag', () => { - expect(typeof environment.production).toBe('boolean'); + expect(environment.production).toBe(false); });
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Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
packages/altair-app/src/environments/environment.spec.ts
🧰 Additional context used
📓 Path-based instructions (8)
{**/__tests__/**/*.ts,**/*.{spec,test}.ts}
📄 CodeRabbit inference engine (.github/instructions/app-testing.instructions.md)
{**/__tests__/**/*.ts,**/*.{spec,test}.ts}: Use Jest as the testing framework for all tests
Organize tests next to the code under test: use a tests folder or .test.ts/.spec.ts files alongside sources
Use clear, descriptive test names explaining what is being verified
Mock dependencies with Jest to isolate the unit under test
Leverage TypeScript types in tests; define interfaces/types for expected data shapes
Files:
packages/altair-app/src/environments/environment.spec.ts
**/*.ts
📄 CodeRabbit inference engine (.github/instructions/app-testing.instructions.md)
Follow project code style using ESLint and Prettier
**/*.ts: Use explicit type annotations for function parameters and return types
Prefer interfaces over type aliases for object shapes
Use union types and literal types for better type safety
Leverage generic types for reusable components
Group imports: external libraries first, then internal modules
Use absolute imports from package roots when possible
Prefer named exports over default exports
Use custom error classes that extend Error
Implement proper error boundaries and handling
Log errors with sufficient context for debugging
Use observables (RxJS) for reactive programming patterns where appropriate
Manage subscriptions to avoid memory leaks
Use appropriate RxJS operators for data transformation
Handle errors in observable streams
Use async/await for sequential operations
Handle promise rejections properly
Use Promise.all() for concurrent operations
Implement timeout handling for long-running operations
Dispose of resources properly (subscriptions, event listeners)
Use weak references where appropriate
Avoid creating unnecessary objects in hot paths
Profile memory usage for performance-critical code
Use tree-shaking-friendly imports
Lazy load heavy modules when possible
Monitor bundle size impacts of new dependencies
Use dynamic imports for code splitting
Validate and sanitize all user inputs
Implement proper XSS and injection prevention
Validate API responses before processing
Sanitize sensitive data in logs
Follow secure coding practices
Group related functionality in modules
Keep files focused and not too large
Use consistent naming conventions
Organize imports and exports clearly
Write JSDoc comments for public APIs
Keep documentation up to date with code changes (inline docs)
Use meaningful variable and function names
Handle environment-specific APIs properly
Use TypeScript features appropriate for the configured version
Files:
packages/altair-app/src/environments/environment.spec.ts
**/*.{ts,tsx}
📄 CodeRabbit inference engine (.github/instructions/main.instructions.md)
Use TypeScript for implementation across the codebase
Files:
packages/altair-app/src/environments/environment.spec.ts
packages/altair-app/**/*.{ts,html}
📄 CodeRabbit inference engine (.github/instructions/main.instructions.md)
Implement and modify the main web app using Angular conventions within packages/altair-app
Files:
packages/altair-app/src/environments/environment.spec.ts
**/*.{spec,test}.{ts,tsx,js}
📄 CodeRabbit inference engine (.github/instructions/main.instructions.md)
Write and maintain tests; Jest is used for most testing
Files:
packages/altair-app/src/environments/environment.spec.ts
**/*.{test,spec}.{ts,js}
📄 CodeRabbit inference engine (.github/instructions/testing.instructions.md)
**/*.{test,spec}.{ts,js}: Follow the Arrange-Act-Assert (AAA) pattern in tests
Write descriptive test names that explain expected behavior
Keep tests focused and independent
Use consistent naming conventions across all test files
Group related tests using describe blocks
Use nested describe blocks for different methods or scenarios
Place setup code in beforeEach or beforeAll hooks
Clean up resources in afterEach or afterAll hooks
Mock external dependencies to isolate units under test
Use Jest's mocking capabilities effectively
Create reusable mock factories for common dependencies
Verify interactions with mocked dependencies when necessary
Use async/await for testing promises
Test both success and error scenarios in async code
Handle timeouts appropriately in async tests
Test concurrent operations when relevant
For NestJS controllers, test HTTP handling, response formatting, auth, and error/status codes; mock service dependencies
For NestJS services, test business logic, data transformations, error handling/validation, and verify logging/monitoring calls
For API integration tests, test endpoints end-to-end, use test DB/transactions, test auth flows, and verify API contracts/responses
For browser extensions, mock browser APIs (chrome., browser.), test message passing, content scripts, and verify manifest configuration
Write performance tests for critical code paths and set performance budgets/thresholds
Monitor test execution times and profile memory usage in tests
Load test API endpoints, verify graceful degradation, check for resource cleanup/memory leaks, and monitor performance metrics
E2E tests should focus on critical user journeys, use realistic data, test cross-browser, and verify integrations
Use dedicated test environments, mock external services appropriately, ensure data consistency, and clean up test artifacts
Create reusable test data factories and use realistic but anonymized data; version fixtures with code and clean up after tests
Maintain high t...
Files:
packages/altair-app/src/environments/environment.spec.ts
packages/altair-app/**/*.{test,spec}.ts
📄 CodeRabbit inference engine (.github/instructions/testing.instructions.md)
packages/altair-app/**/*.{test,spec}.ts: Use the custom testing framework in packages/altair-app/src/testing for Angular component tests
Focus on component business logic rather than UI library behavior
Mock services and external dependencies in component tests
Test component lifecycle methods appropriately
In components, test methods, business logic, event emissions, state changes, lifecycle, and integration with injected services
Do NOT test UI library component properties, template rendering details, CSS, or third-party library behavior in component tests
Files:
packages/altair-app/src/environments/environment.spec.ts
**/*.{spec,test}.ts
📄 CodeRabbit inference engine (.github/instructions/typescript.instructions.md)
**/*.{spec,test}.ts: Write unit tests focusing on business logic and behavior
Use descriptive test names
Mock external dependencies appropriately in tests
Test edge cases and error conditions
Files:
packages/altair-app/src/environments/environment.spec.ts
🧠 Learnings (21)
📓 Common learnings
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to packages/altair-app/**/*.{test,spec}.ts : Test component lifecycle methods appropriately
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/angular-components.instructions.md:0-0
Timestamp: 2025-10-13T05:15:52.113Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.component.spec.ts : Test event emissions, state changes, and method behavior in unit tests
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/app-testing.instructions.md:0-0
Timestamp: 2025-09-24T19:40:17.905Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.spec.ts : Test state management and property changes of components
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/nestjs-api.instructions.md:0-0
Timestamp: 2025-10-03T16:40:52.954Z
Learning: Applies to packages/altair-api/src/**/*.spec.ts : Write unit tests for services and controllers
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/nestjs-api.instructions.md:0-0
Timestamp: 2025-10-03T16:40:52.954Z
Learning: Applies to packages/altair-api/src/auth/**/*.spec.ts : Test authentication and authorization scenarios
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/main.instructions.md:0-0
Timestamp: 2025-10-03T16:39:27.517Z
Learning: Before PRs, ensure changes are covered by appropriate unit/integration/e2e tests and verified locally
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to packages/altair-app/**/*.{test,spec}.ts : In components, test methods, business logic, event emissions, state changes, lifecycle, and integration with injected services
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to packages/altair-app/**/*.{test,spec}.ts : Mock services and external dependencies in component tests
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/angular-components.instructions.md:0-0
Timestamp: 2025-10-13T05:15:52.113Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.component.spec.ts : Write unit tests focusing on component business logic
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/angular-services.instructions.md:0-0
Timestamp: 2025-10-03T16:36:10.024Z
Learning: Applies to packages/altair-app/src/**/*.service.spec.ts : Mock external dependencies using Jest in service tests
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to **/*.{test,spec}.{ts,js} : Use dedicated test environments, mock external services appropriately, ensure data consistency, and clean up test artifacts
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Applies to **/*.test.{js,mjs,cjs} : Test error conditions and edge cases
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to **/*.{test,spec}.{ts,js} : Load test API endpoints, verify graceful degradation, check for resource cleanup/memory leaks, and monitor performance metrics
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Test across different browser environments
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Applies to **/*.test.{js,mjs,cjs} : Write tests for complex build scripts
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to **/*.{test,spec}.{ts,js} : Keep tests focused and independent
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to **/*.{test,spec}.{ts,js} : Review test code as carefully as production code; refactor for maintainability; remove flaky tests; keep tests simple and focused
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/typescript.instructions.md:0-0
Timestamp: 2025-10-03T16:42:34.287Z
Learning: Test compatibility across different environments
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Applies to **/*.test.{js,mjs,cjs} : Mock external dependencies appropriately in tests
📚 Learning: 2025-10-03T16:41:45.498Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to packages/altair-app/**/*.{test,spec}.ts : In components, test methods, business logic, event emissions, state changes, lifecycle, and integration with injected services
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-09-24T19:40:17.905Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/app-testing.instructions.md:0-0
Timestamp: 2025-09-24T19:40:17.905Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.spec.ts : Test state management and property changes of components
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-13T05:15:52.113Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/angular-components.instructions.md:0-0
Timestamp: 2025-10-13T05:15:52.113Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.component.spec.ts : Test event emissions, state changes, and method behavior in unit tests
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-09-24T19:40:17.905Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/app-testing.instructions.md:0-0
Timestamp: 2025-09-24T19:40:17.905Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.spec.ts : Test component lifecycle behavior
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:41:45.498Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to packages/altair-app/**/*.{test,spec}.ts : Use the custom testing framework in packages/altair-app/src/testing for Angular component tests
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:41:45.498Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to packages/altair-app/**/*.{test,spec}.ts : Test component lifecycle methods appropriately
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:40:52.954Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/nestjs-api.instructions.md:0-0
Timestamp: 2025-10-03T16:40:52.954Z
Learning: Applies to packages/altair-api/src/**/*.spec.ts : Mock dependencies properly in tests
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:41:45.498Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to packages/altair-app/**/*.{test,spec}.ts : Mock services and external dependencies in component tests
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-13T05:15:52.113Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/angular-components.instructions.md:0-0
Timestamp: 2025-10-13T05:15:52.113Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.component.spec.ts : Use the custom testing framework from packages/altair-app/src/testing in component tests
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-09-24T19:40:17.905Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/app-testing.instructions.md:0-0
Timestamp: 2025-09-24T19:40:17.905Z
Learning: Applies to packages/altair-app/src/app/modules/altair/components/**/*.spec.ts : Do not test Angular framework internals
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:38:42.919Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Applies to **/*config.{js,mjs,cjs} : Use environment variables for environment-specific settings in config files
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:41:45.498Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/testing.instructions.md:0-0
Timestamp: 2025-10-03T16:41:45.498Z
Learning: Applies to **/*.{test,spec}.{ts,js} : Use dedicated test environments, mock external services appropriately, ensure data consistency, and clean up test artifacts
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:42:34.287Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/typescript.instructions.md:0-0
Timestamp: 2025-10-03T16:42:34.287Z
Learning: Applies to **/*.ts : Handle environment-specific APIs properly
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:38:42.919Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Applies to **/*.test.{js,mjs,cjs} : Mock external dependencies appropriately in tests
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:42:34.287Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/typescript.instructions.md:0-0
Timestamp: 2025-10-03T16:42:34.287Z
Learning: Test compatibility across different environments
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:40:52.954Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/nestjs-api.instructions.md:0-0
Timestamp: 2025-10-03T16:40:52.954Z
Learning: Applies to packages/altair-api/src/config/**/*.ts : Use NestJS ConfigModule for environment variables
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:38:42.919Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Applies to **/*.test.{js,mjs,cjs} : Test error conditions and edge cases
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:38:42.919Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Test across different browser environments
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:38:42.919Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/javascript.instructions.md:0-0
Timestamp: 2025-10-03T16:38:42.919Z
Learning: Applies to **/*.test.{js,mjs,cjs} : Write tests for complex build scripts
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
📚 Learning: 2025-10-03T16:36:10.024Z
Learnt from: CR
Repo: altair-graphql/altair PR: 0
File: .github/instructions/angular-services.instructions.md:0-0
Timestamp: 2025-10-03T16:36:10.024Z
Learning: Applies to packages/altair-app/src/**/*.service.spec.ts : Mock external dependencies using Jest in service tests
Applied to files:
packages/altair-app/src/environments/environment.spec.ts
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)
- GitHub Check: Sourcery review
🔇 Additional comments (3)
packages/altair-app/src/environments/environment.spec.ts (3)
9-11: Good test for version synchronization.This correctly validates that the environment exposes the version from
package.json, ensuring consistency.
1-2: Imports are correct and properly supported.The
environmentandpackage.jsonimports are appropriate. TypeScript configuration already hasresolveJsonModuleenabled inpackages/altair-app/tsconfig.json, so JSON imports are properly supported.
13-15: The test assertion is correct. Theenvironment.serverReadyvalue is intentionally set totruein both the development and production environment configurations. The test is verifying the actual configured default, not an arbitrary expectation. This test appropriately guards against unintended configuration changes.
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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What this PR does
environment.tsinaltair-appHow to test